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High Pressure DTH Hammers without Foot Valve DHD 350

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  • DTH Hammer. High Air Pressure With Foot Valve SQ85AMS

    2016-12-28 · High Air Pressure without Foot Valve DTH Hammers. It is one of the most advanced DTH Hammers in the world. Featuring following advantages: 1. Out of the trouble of foot valve fracture and expansion and contraction. 2. Lower energy consumption and higher impact frequency. The drilling speed is 15%-30% higher than the one with foot valve. 3.

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